Ideal for hot and cold beverages, smoothies, cocktails, frozen drinks, shakes, iced coffee, iced tea, and more. Made from high-quality borosilicate glass, eco-friendly, with no metallic aftertaste, dishwasher safe, and reusable. Fits standard straw openings, allowing for perfect internal cleaning due to its transparency. The high-quality borosilicate glass straw set is not only an elegant addition to a host's kitchen but also the perfect way to enhance the presentation of a great drink for guests. They look stylish and aesthetic, are comfortable, functional, eco-friendly, and easy to clean with the included brushes. Thanks to the thickness of the glass walls and the included storage bag, the reusable straws are also durable. Cheers.